Contacts of the helix formed by residues 384 - 389 (chain N) in PDB entry 3FKS
Residue contacts within the protein are
derived with the CSU software (Sobolev V., Sorokine A.,
Prilusky J., Abola E.E. and Edelman M. (1999) Automated
analysis of interatomic contacts in proteins.
Bioinformatics, 15, 327-332). A
short description of the analytical approach
is given at the end of the page.
Note:
Non-standard 3 letter residue
codes indicate a heterogroup. To identify
and analyse, use LPC software
Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC - hydrophobic-hydrophilic contact (destabilizing contact)
+/- - indicates presence/absence of a specific contacts
* - indicates residues forming contacts by their side chain
(including CA atoms)
Residues in contact with LEU 384 (chain N).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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380N THR* 3.2 27.9 + - - +
381N TYR* 3.4 10.9 + - + +
383N SER* 1.3 78.4 + - - +
385N GLN* 1.3 64.0 + - - +
386N ASP 3.0 4.0 + - - -
387N ILE* 3.4 25.1 - - + +
388N ILE* 3.0 35.8 + - + +
396N LEU* 4.0 20.0 - - + -
400N ASP* 4.9 16.8 - - - +
403N THR* 5.9 1.1 - - - +
404N VAL* 3.5 31.4 - - + -
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Residues in contact with GLN 385 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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381N TYR* 2.8 51.0 + - - +
382N LYS* 3.0 28.4 - - + +
383N SER 3.0 1.0 - - - -
384N LEU* 1.3 78.9 - - - +
386N ASP* 1.3 63.9 + - - +
388N ILE* 4.2 10.3 - - - +
389N ALA* 3.5 21.5 + - - +
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Residues in contact with ASP 386 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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382N LYS 5.4 0.6 - - - +
383N SER* 3.3 17.8 - - - +
384N LEU 3.0 1.2 - - - -
385N GLN* 1.3 83.1 - - - +
387N ILE* 1.3 68.2 + - + +
389N ALA* 3.8 11.5 + - - +
390N ILE* 3.9 7.4 - - - +
21P LYS* 4.1 17.7 - - - -
24P LYS* 3.8 18.9 + - - -
25P ILE* 3.5 43.5 - - + +
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Residues in contact with ILE 387 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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383N SER 4.3 4.3 - - - +
384N LEU* 3.4 43.7 - - + +
386N ASP* 1.3 77.2 - - + +
388N ILE* 1.3 62.3 + - + +
389N ALA 3.2 2.5 - - - -
390N ILE* 3.4 2.1 + - - +
391N LEU* 2.8 62.8 + - + +
392N GLY 5.2 0.2 - - - -
395N GLU* 6.4 0.4 - - + -
396N LEU* 5.7 2.9 - - + -
25P ILE* 6.3 0.4 - - + -
28P SER* 5.2 14.1 - - - +
31P LEU* 5.8 3.1 - - + -
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Residues in contact with ILE 388 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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381N TYR* 5.1 14.6 - - + -
384N LEU* 3.0 35.8 + - + +
385N GLN* 4.5 10.1 - - - +
387N ILE* 1.3 81.4 - - + +
389N ALA* 1.3 63.0 + - - +
390N ILE 3.3 0.9 + - - -
392N GLY* 3.5 33.5 + - - +
393N MET* 4.9 3.8 - - + +
396N LEU* 4.7 23.6 - - + -
404N VAL* 5.1 7.0 - - + -
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Residues in contact with ALA 389 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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413J ASP* 4.3 5.5 - - - +
414J ALA* 4.9 9.0 - - - +
415J SER* 5.3 6.4 + - - -
416J THR* 5.7 10.4 + - + +
385N GLN 3.5 17.6 + - - +
386N ASP* 3.8 2.7 - - - +
387N ILE 3.2 0.8 - - - -
388N ILE* 1.3 79.8 - - - +
390N ILE* 1.3 75.0 + - + +
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A short description of the
analytical approach
The contact analysis used in this page
is based upon the approach
developed in:
Sobolev V., Wade R.C., Vriend G.
and Edelman M. PROTEINS (1996)
25, 120-129.
Contact legitimacy depends on the hydrophobic-hydrophilic
properties of the contacting atoms. In order to
define it, for each inter-atomic contact,
eight atom classes have been introduced:
I Hydrophilic - N and O that can donate and accept hydrogen bonds
(e.g., oxygen of hydroxyl group of Ser. or Thr)
II Acceptor - N or O that can only accept a hydrogen bond
III Donor - N that can only donate a hydrogen bond
IV Hydrophobic - Cl, Br, I and all C atoms that are not in
aromatic rings and do not have a covalent bond to
a N or O atom
V Aromatic - C in aromatic rings irrespective of any other
bonds formed by the atom
VI Neutral - C atoms that have a covalent bond to at least one
atom of class I or two or more atoms from class II
or III; atoms; S, F, P, and metal atoms in all cases
VII Neutral-donor - C atoms that have a covalent bond with only one
atom of class III
VIII Neutral-acceptor - C atoms that have a covalent bond with only
one atom of class II
For each pair of contacts the state of legitimacy
is shown below:
Legend:
+, legitimate
-, illegitimate
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Atomic class I II III IV V VI VII VIII
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I (Hydrophilic) + + + - + + + +
II (Acceptor) + - + - + + + -
III (Donor) + + - - + + - +
IV (Hydrophobic) - - - + + + + +
V (Aromatic) + + + + + + + +
VI (Neutral) + + + + + + + +
VII (Neutral-donor) + + - + + + - +
VIII (Neutral-acceptor) + - + + + + + -
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Warning!
Atom classes for heterogroups are automatically
assigned based on the atomic coordinates. However, in
three cases (see below) the automatic assignment
is currently ambiguous. In these
cases, the user is advised to manually analyse
the full list of contacts using
LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are
considered "aromatic" (Class V) if the ring is approximately
planar, and "hydrophobic" (Class IV) or "neutral" (Classes
VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
"hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
"carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).
Please E-mail any
questions and/or suggestions concerning this page to
Vladimir.Sobolev@weizmann.ac.il